Jake runs 11 feet per second. Brooke runs 283 feet in 19 seconds.
Ron runs 1 mile in 434 seconds.
Stephanie runs 645 feet in 1 minute.
who runs the fastest

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?